I saw one at the bosun's locker in south queensferry a couple of months ago , it was in for a service .
It looked a very neat rib and from the video looks capable enough .
The guy that own the one i saw has a caravan on the east coast of Scotland right by the sea and uses it to go fishing as he can park it beside the caravan and just jump in and drive straight down the beach and into the sea .
I think they are about £75k new .
I think they are about 45/50 k to buy but could be handy. There is one here in Poole used to make landfall on one of the private islands in the harbour. Fun to watch it deploying last year, kids loved it, pretty james bond